"Session.RequestApkInstallation" returns no result.

[pjsmemo]

In "HelloAR" received as a sample example, the ARCore APK installation request works well and the result is returned normally.

However, in the environment I am developing (Native and Unity run in different processes), the ARCore APK installation result is not returned normally.

Issue.
*When requesting to install ARCore in an environment where Native and Unity processes are separated.

1. No results other than Success results are returned.
2. Installation request is not responding since the second time.

Is this a bug?
Is it possible to modify it so that other processes can receive the results normally?

[ARCore APK Installation Request Code]

IEnumerator ARCoreAPKInstallRoutine(Action<ApkInstallationStatus> onResult)
{
    AsyncTask<ApkInstallationStatus> installTask = Session.RequestApkInstallation(false);
    CustomYieldInstruction customYield = installTask.WaitForCompletion();
    yield return customYield;

    var result = installTask.Result;

    ApplyARCoreInstallResult(result);

    onResult?.Invoke(result);
}

[AndroidManifest]

• The app I'm developing starts with a Native app and runs Unity when needed.
• Process separation is a must in our app.
• see "android:process=":unity"

<activity
   android:name=".ui.activity.UnityPlayerActivity"
   android:autoRemoveFromRecents="true"
   android:excludeFromRecents="true"
   android:configChanges="mcc|mnc|....
   android:exported="false"
   android:process=":unity"
   android:screenOrientation="sensorLandscape"
   android:theme="@style/VrActivityTheme">

Thank you.